Omega Engineering Melting Point Testers MPS11 50°C to 250°C Analog Melting Point Tester50°C to 250°C temperature range melting point tester for up to 3 samples testing. Ramp Rate is 1 to 10°C/minute. MPS30-series Ambient to 400°C Digital Melting Point Tester3 samples melting point tester has temperature range from ambient to 400°C and ramp rate 0.55°C to 10.0°C/minute with memory storage.